在如图所示电路的〇里填上适当的电表符号,使之成为正确的电路.
下列各组词语,字形无误的一组是
A.丹樨篙菜书涂嫩鸦悬梁刺股
B.厮守盥嗽流觞曲水宜室宜家
C.玉醅顷刻杯盘狼藉举案齐眉
D.优渥罗帷凭虚御风望帝啼鹃
He rushed out of the burning house with the little boy in his arms ____________ the roof fell down and the boy was saved.
A.after
B.as
C.before
D.until